Year	% of total final energy consumption
1990	24.2
1991	24.2
1992	20.8
1993	21.6
1994	20.9
1995	20.4
1996	19.3
1997	16.6
1998	18.2
1999	19.6
2000	19.4
2001	17.1
2002	17.1
2003	16.6
2004	16.7
2005	16.2
2006	14.2
2007	15.9
2008	15.3
2009	12.9
2010	11.8
2011	13.2
2012	13.2
2013	11.8
2014	12.2
2015	13.1
2016	14.8
2017	17
2018	16.3
2019	17.7
2020	20.2
2021	18.9